Electric Shock Prevention
Fire Prevention
Injury Prevention
Additional Instructions
Also note the following points to prevent an accidental failure, injury, electric shock, etc.
Transportation and installation
This section is specifically about safety matters
Do not attempt to install, operate, maintain or inspect the inverter until you have read through this Installation Guideline and appended
documents carefully and can use the equipment correctly. Do not use the inverter until you have a full knowledge of the equipment,
safety information and instructions. In this Installation Guideline, the safety instruction levels are classified into "WARNING" and
"CAUTION".
Assumes that incorrect handling may cause hazardous conditions, resulting in death or severe injury.
Assumes that incorrect handling may cause hazardous conditions, resulting in medium or slight injury, or may
cause physical damage only.
Note that even the level may lead to a serious consequence according to conditions. Please follow strictly the instructions
of both levels because they are important to personnel safety.
앫While power is on or when the inverter is running, do not open the front cover or wiring cover. Otherwise you may get an electric
shock.
앫Do not run the inverter with the front cover removed. Otherwise, you may access the exposed high-voltage terminals or the charging
part of the circuitry and get an electric shock.
앫
Even if power is off, do not remove the front cover except for wiring or periodic inspection.You may access the charged inverter circuits and
get an electric shock.
앫Before starting wiring or inspection, check to make sure that the operation panel indicator is off, wait for at least 10 minutes after the
power supply has been switched off, and check that there are no residual voltage using a tester or the like. The capacitor is charged
with high voltage for some time after power off and it is dangerous.
앫
This inverter must be earthed (grounded). Earthing (Grounding) must conform to the requirements of national and local safety regulations
and electrical codes. (NEC section 250, IEC 536 class 1 and other applicable standards)
Use an neutral-point earthed (grounded) power supply for 400V class inverter in compliance with EN standard.
앫Any person who is involved in the wiring or inspection of this equipment should be fully competent to do the work.
앫Always install the inverter before wiring. Otherwise, you may get an electric shock or be injured.
앫Perform setting dial and key operations with dry hands to prevent an electric shock. Otherwise you may get an electric shock.
앫Do not subject the cables to scratches, excessive stress, heavy loads or pinching. Otherwise you may get an electric shock.
앫Do not replace the cooling fan while power is on. It is dangerous to replace the cooling fan while power is on.
앫Do no
t touch the printed circuit board with wet hands. You may get an electric shock
.
앫When measuring the main circuit capacitor capacity, the DC voltage is applied to the motor for 1s at powering off. Never touch the
motor terminal, etc. right after powering off to prevent an electric shock.
앫Mount the inverter to incombustible material. Mounting it to or near combustible material can cause a fire
.
앫If the inverter has become faulty, switch off the inverter power. A continuous flow of large current could cause a fire.
앫
When using a brake resistor, make up a sequence that will turn off power when an alarm signal is output.
Otherwise,
the brake resistor may
excessively overheat due to damage of the brake transistor and such, causing a fire
.
앫
Do not connect a resistor directly to the DC terminals P, N. This could cause a fire and destroy the inverter. The surface temperature of
braking resistors can far exceed 100°C for brief periods. Make sure that there is adequate protection against accidental contact and a safe
distance is maintained to other units and system parts
.
앫Apply only the voltage specified in the instruction manual to each terminal. Otherwise, burst, damage, etc. may occur.
앫Ensure that the cables are connected to the correct terminals. Otherwise, burst, damage, etc. may occur.
앫Always make sure that polarity is correct to prevent damage, etc. Otherwise, burst, damage, etc. may occur.
앫While power is on or for some time after power-off, do not touch the inverter as it is hot and you may get burnt.
앫Transport the product using the correct method that corresponds to the weight. Failure to observe this could lead to injuries.
앫Do not stack the inverter boxes higher than the number recommended.
앫
Ensure that installation position and material can withstand the weight of the inverter. Install according to the information in the instruction
manual.
앫
Do not install or operate the inverter if it is damaged or has parts missing. This can result in breakdowns.
앫When carrying the inverter, do not hold it by the front cover or setting dial; it may fall off or fail.
앫Do not stand or rest heavy objects on the product.
앫Check the inverter mounting orientation is correct.
앫Prevent other conductive bodies such as screws and metal fragments or other flammable substance such as oil from entering the
inverter.
앫
As the inverter is a precision instrument, do not drop or subject it to impact.
앫Use the inverter under the following environmental conditions. Otherwise, the inverter may be damaged.
햲Temperature applicable for a short time, e.g. in transit.
Operating condition
Ambient temperature −10°C to +50°C (non-freezing)
Ambient humidity 90% RH or less (non-condensing)
Storage temperature −20°C to +65°C 햲
Atmosphere Indoors (free from corrosive gas, flammable gas, oil mist, dust and dirt)
Altitude Maximum 1000m above sea level for standard operation. After that derate by 3% for every extra 500m
up to 2500m (91%)
Vibration 5.9m/s² or less